Home / 51,509.49-71,074.97-30,002.78

Finding the Fourth Proportional to 51,509.49, 71,074.97 and 30,002.78

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Solution

The fourth proportional to 51,509.49, 71,074.97 and 30,002.78 is: 41,399.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,509.49 : 71,074.97 = 30,002.78 : x
  2. Step 2: Convert to fraction form
    51,509.49/71,074.97 = 30,002.78/x
  3. Step 3: Cross multiply
    51,509.49x = 71,074.97 × 30,002.78
  4. Step 4: Simplify right side
    51,509.49x = 2,132,446,183.03
  5. Step 5: Solve for x
    x = 2,132,446,183.03/51,509.49
  6. Step 6: Final answer
    x = 41,399.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.